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8538406 = 253109739
BaseRepresentation
bin100000100100…
…100100100110
3121001210111021
4200210210212
54141212111
6503001354
7132401212
oct40444446
917053437
108538406
114902038
122a3925a
1319cc516
1411c3942
15b39d71
hex824926

8538406 has 16 divisors (see below), whose sum is σ = 13186800. Its totient is φ = 4144608.

The previous prime is 8538401. The next prime is 8538419. The reversal of 8538406 is 6048358.

It is a d-powerful number, because it can be written as 85 + 55 + 312 + 87 + 411 + 0 + 68 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8538401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11185 + ... + 11923.

It is an arithmetic number, because the mean of its divisors is an integer number (824175).

Almost surely, 28538406 is an apocalyptic number.

8538406 is a deficient number, since it is larger than the sum of its proper divisors (4648394).

8538406 is a wasteful number, since it uses less digits than its factorization.

8538406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 8538406 is about 2922.0550987276. The cubic root of 8538406 is about 204.3896659540.

The spelling of 8538406 in words is "eight million, five hundred thirty-eight thousand, four hundred six".

Divisors: 1 2 53 106 109 218 739 1478 5777 11554 39167 78334 80551 161102 4269203 8538406